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Old 08-07-2009, 11:29 PM   #2160 (permalink)
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Originally Posted by mcudogs View Post
Also the low voltage wiring should be shielded with the shield connected to earth at both ends if possible.
This is incorrect, the shield should be connected to earth/frame at one end only (controller end that is). If there are multiple shielded cables they should if possible be connected to the same earth point.
The aim is to avoid earth loops.

In a similar way loops should be avoided in earth planes on printed circuit boards.

Last edited by squiggles; 08-07-2009 at 11:35 PM..
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